I'm looking for tips on assembling a voltage regulator circuit to provide voltage to a sensor.
I need to regulate the output voltage to between 4.99 and 5.01 VDC. The input will be a 9V battery. The load will be steady state and under 10mA current. I need a circuit that will self regulate to the proper output voltage without outside input (no human fiddling with a POT after initial assembly), and give proper output voltage even as the 9V battery ages and drops in voltage. Duty cycle will be short (a few minutes) so efficiency isn't a concern.
This adjustable voltage regulator based on an LM317 looks great, but in the real world will the output voltage actually drop by a significant amount as the 9V battery depleats and looses voltage? Also is this regulator good enough to output between 4.99 and 5.01 reliably? I'm open to any and all suggestions.
I need to regulate the output voltage to between 4.99 and 5.01 VDC. The input will be a 9V battery. The load will be steady state and under 10mA current. I need a circuit that will self regulate to the proper output voltage without outside input (no human fiddling with a POT after initial assembly), and give proper output voltage even as the 9V battery ages and drops in voltage. Duty cycle will be short (a few minutes) so efficiency isn't a concern.
This adjustable voltage regulator based on an LM317 looks great, but in the real world will the output voltage actually drop by a significant amount as the 9V battery depleats and looses voltage? Also is this regulator good enough to output between 4.99 and 5.01 reliably? I'm open to any and all suggestions.